Malicious Office (OLE) / .DOCX — malware analysis report

Static analysis result for SHA-256 85db8e1367049495…

MALICIOUS

Office (OLE) / .DOCX

116.0 KB Created: 2021-01-22 08:25:00 Authoring application: Microsoft Office Word
MD5: c2ff606bd029340c05e124ba67c40c6f SHA-1: 634117d62efb9354a1b932b14cdb8cb90a8cf96c SHA-256: 85db8e1367049495d055580e0a00903d9164dd0959a743c70857063a6534fd3c
202 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The sample is a malicious Office document containing a VBA macro that executes upon opening. The macro utilizes CreateObject and appears to be designed to download and execute a second-stage payload, as indicated by the ClamAV detection name 'Doc.Malware.Emodldr'. The obfuscated nature of the script prevents a more detailed analysis of its exact behavior.

Heuristics 6

  • ClamAV: Doc.Malware.Emodldr-10033991-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emodldr-10033991-0
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • VBA p-code auto-exec with execution tokens high OLE_VBA_PCODE_AUTOEXEC_EXEC
    Compiled VBA/cache stream contains an auto-execution token together with shell/download/object-execution tokens. This catches p-code-only or source-extraction-failure macro documents where visible source is unavailable.
  • VBA macros detected medium OLE_VBA_MACROS
    Document contains VBA macro code
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://schemas.openxmlformats.org/drawingml/2006/main

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
7da8e59fbf67087c3a4a2ba620044b390718b814f0e439e46e27c73903adec4f		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 16842 bytes

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